6556723 has 2 divisors, whose sum is σ = 6556724. Its totient is φ = 6556722.

The previous prime is 6556709. The next prime is 6556727. The reversal of 6556723 is 3276556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6556723 - 2¹⁷ = 6425651 is a prime.

It is not a weakly prime, because it can be changed into another prime (6556727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3278361 + 3278362.

It is an arithmetic number, because the mean of its divisors is an integer number (3278362).

Almost surely, 2^6556723 is an apocalyptic number.

6556723 is a deficient number, since it is larger than the sum of its proper divisors (1).

6556723 is an equidigital number, since it uses as much as digits as its factorization.

6556723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 34.

The square root of 6556723 is about 2560.6098882883. The cubic root of 6556723 is about 187.1668561352.

The spelling of 6556723 in words is "six million, five hundred fifty-six thousand, seven hundred twenty-three".